There are existing XSL stylesheets/libraries for transforming XML to
JSON such as...

http://www.bramstein.nl/xsltjson/

I imagine it would also be possible for an XSL transform to recurse a
piece JSON and create a temporary node set from it.

In the interest of not reinventing the wheel (cough, JSON) does anyone
know of an existing library for ingesting JSON into an XSL transform?

/utah ingersoll